Directional motion of dust particles at different gear structures in a plasma

Dai Chao-Xing, Song Chao, Zhou Zhi-Xiang, Sun Wen-Tao, Guo Zhi-Qiang, Liu Fu-Cheng^†, He Ya-Feng^‡

Distribution of angular velocity at different angular positions in the saw channel. The colored curves represent the superposition of the distribution of angular velocity of 74 dust particles. Black arrow line indicates the motion direction of dust particles. Gas pressure: 40 Pa, RF power: 25 W.